Scaffold



(No Model.)

E. BONNLENDER. VSGAPPOLD.

Patented Mar. 6, 1894.

UNITED STATES PATENT EEICE.

EGIDIUS BONNLENDER, OF BEAVERVDAM, WISCONSIN..

SCAFFOLD.

SPECIFICATION forming partof Letters Patent No 515,738, dated March 6,1894.

Application filed May 13, 1893. Serial No. 474.049. (No model.)

To @ZZ wiz/mn it may concern:

Be it known that l, EGIDIUs BONNLENDER, of Beaver Dam, in the county ofDodge and State of lfVisconsin, have invented a new and usefulImprovement in Scaffolds, of which the following is a description,reference being had to the accompanying drawings, which are a part ofthis specification.

My invention has relation to improvements in builders scaiolds,particularly adapted for use during the progress of building, for thesupport of workmen and material.

The object of the invention is the provision of a simple device lwherebythe scaffold is readily adjusted in place, and as readily removed withlittle or no danger of its accidental dislodgment during its temporaryadjustment to a building.

W'ith this object in view the invention consists in the improvedconstruction and combination of parts as hereinafter more fully setforth.

In theaccompanyingdrawings,Figure l, is a perspective view of myimproved device, showing the scaffold properly adjusted in place to afragment of a building, and Fig. 2, is a detail perspective view of theinvention proper.

Like letters of reference denote like parts in both figures of thedrawings. y

Referring to the drawings, the invention proper consists of a casting orangular bracket comprising a vertical arm A, a horizontal arm A and anangular tang or tongue A2, projecting from the angle or corner formed bythe junction of the arms A and A'. .These parts are preferably formedintegral or castin one plece.

The frame work of the scaffold to which the device is applied may be ofany well known or preferred form capable of the proper adjustmentthereto of the device.

In the drawingsl have illustrated one end of a scaiold frame consistingof an upright standard B, a horizontal beam C for supporting one end ofthe platform, and an oblique brace D.

The arms A and A of the angular bracket are secured respectively to theupright and horizontal beam of the scaold by means of screws, orequivalent devices, being preferably set in recesses therefor in theparts referred to of the scaold, so as to be brought flush with thesurfaces of these parts.

The letter E indicates a fragment of the sheathing or other portion of abuilding, and for the adjustment thereto of my invention it is necessaryto provide therein alhole F for the reception of the tang or tongue. Thevertical portion of this tang or tongue is rst brought to a horizontalposition which admits of it being readily passed through the aperture inthe sheathing. The end section of the scaold can then be readilybroughtdown so as to assume the position shown in Fig. l. Thisarrangement necessarily brings the vertical portion of the tang to therear of the sheathing, and the horizontal portion resting and seated inthe aperture, while the vertical portion of the scaffold frame will bearagainst the sheathing. for the retention of the scaiold in place isformed.

lf desired the lower end of the upright of the scaffold may be providedwith a pin G to take into the sheathing and obviate any dan- In thismanner asecure lock Y ger of the displacement of the lower portion i ofthe scaffold. This feature, however, is not absolutely essential to myinvention, as practice has demonstrated that successful results areattainable without the employmentof this eXtra part.

Having thus described my invention, what I claim, and desire to secureby Letters Patent isl. As an improved article of manufacture, a castingor bracket for attachment to scaffold frames, consisting of a verticaland a horizontal member, said parts formed at their angle witha tang,which projects out, first, horizontally, and then upward at rightangles, substantially as set forth.

2. The combination, with a scaffold frame, having a vertical andahorizontal portion, of an angular bracket or casting, comprising avertical and a horizontal arm,secured, respect-v ively, to the verticaland horizontal portions of the frame, said bracket or casting formed atits angle with a tang which projects out, first, horizontally and thenupward at right angles, said tang adapted to be passed through anaperture in the sheathing of a building, so that the vertical portionthereof will lie back of said sheathing, and the horizontal IOO 1o wardat right angles, and adapted to be passed through an aperture in thesheathing of a building, so that the vertical portion thereof will lieback of said sheathing and the horizontal portion will be seated andsupported 'in the aperture, and the Vertical portion of the scaffoldframe will bear against the sheathing, substantially as set forth.

In testimony whereof I aiix my signature in presence of two Witnesses.

EGIDIUS BONNLENDER.

Witnesses:

J. E. CoNNoRs, JOHN KELLY.

